2022-10-04 13:12:54 +03:00
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/*
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* Copyright (C) 2022 Yubico.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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2022-03-09 19:47:50 +03:00
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import 'package:flutter/foundation.dart';
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2021-11-19 13:10:00 +03:00
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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2021-11-19 15:02:25 +03:00
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import 'package:shared_preferences/shared_preferences.dart';
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2021-11-19 13:10:00 +03:00
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2023-03-03 18:29:24 +03:00
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bool get isDesktop {
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return const [
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TargetPlatform.windows,
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TargetPlatform.macOS,
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TargetPlatform.linux
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].contains(defaultTargetPlatform);
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}
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bool get isAndroid {
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return defaultTargetPlatform == TargetPlatform.android;
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}
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2022-03-09 19:47:50 +03:00
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2021-11-19 15:02:25 +03:00
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// This must be initialized before use, in main.dart.
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final prefProvider = Provider<SharedPreferences>((ref) {
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throw UnimplementedError();
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});
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2022-03-09 19:47:50 +03:00
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abstract class ApplicationStateNotifier<T>
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2022-03-24 00:55:18 +03:00
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extends StateNotifier<AsyncValue<T>> {
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ApplicationStateNotifier() : super(const AsyncValue.loading());
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2022-03-09 19:47:50 +03:00
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@protected
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2022-03-24 00:55:18 +03:00
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Future<void> updateState(Future<T> Function() guarded) async {
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final result = await AsyncValue.guard(guarded);
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2022-03-09 19:47:50 +03:00
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if (mounted) {
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2022-03-24 00:55:18 +03:00
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state = result;
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2022-03-09 19:47:50 +03:00
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}
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}
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@protected
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2022-03-24 00:55:18 +03:00
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void setData(T value) {
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2022-03-09 19:47:50 +03:00
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if (mounted) {
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2022-03-24 00:55:18 +03:00
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state = AsyncValue.data(value);
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2022-03-09 19:47:50 +03:00
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}
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}
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}
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